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[Solved] Daikin Altherma noisy heat pump - help and advice needed

Clairelp · 2024-02-23T20:43:52Z

Hello, We recently had a Daikain altherma 11kw heat pump installed. We are happy with how it’s heating our home and the costs, but I hate the thing due to the noise in our bedroom. When we had our original survey for the heat pump, we were told we would not hear it indoors. I thought I would hear it in the lounge, as you can see it’s next to French doors. However, it isn’t a problem in the lounge as much, but the noise is so annoying in our bedroom. When it’s turned off, it’s such a relief, and I can’t sleep with it going. I'm not sure if it’s from the unit or the flow and return. It’s about 25-30 decibels inside the room. While it is quieter than our old oil boiler, the oil boiler was in our utility room, so we didn’t hear it, and it was only noisy on start up where as the heat pumps run a lot, especially in winter. And this is on the bedroom wall. So in the evening, I try to get our toddler to sleep, and it drives me mad. While we do live in quiet location but we do live next to a military air base so we are used to noise, but this is just annoying constant noise. Turn it off; it’s like being out of a loud bar and being relieved to have peace when it’s off. In picture red I marked is bedroom and where bed is. Any advice? I would be very grateful. if anyone managed to reduce sound. We had to use our savings to buy it so don’t really want to find money to replace it and going green was and is important to us. Thank you

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Air Source Heat Pumps (ASHPs)

Last Post by AndyRisk 2 years ago

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Clairelp

(@clairelp)

Eminent Member Member

Joined: 3 years ago

Posts: 27

Topic starter 28/03/2024 12:03 pm

Hello,

So we had another visit yesterday, two installers with lot more experience. They sorted it, in about 30 minutes. They unclipped the pipes from the ceiling joists, so they now just sitting on top of insulation. Said they okay to leave as not moving.

like you all recommended it was pipes attached to joists.

They said from the beginning they wouldn’t have installed as their colleagues had. They would have gone from the top of roof and put the volumiser on top of the airing cupboard. The ceiling was like a drum vibrating from the pipes.

Anyway so far so good and we wasn’t woken last night. hope this may help someone else. We do still have noise but that is purely the ashp and when it’s not on full speed you can’t hear it.

👍

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AndyRisk

(@andyrisk)

New Member Member

Joined: 2 years ago

Posts: 1

25/11/2024 8:21 pm

Hi @clairelp I’m not sure if you will see this as it has been some time since your earlier messages, but if you can, please can you let me know the name of the people that helped fix your system? I’m based not too far from you on the Suffolk/Essex border and am having similar troubles with loud, intermittent noises I think coming from the pipes since I had an ASHP installed. It has made 2 bedrooms almost unusable unfortunately. Thank you! (And thanks also to everyone who also helpfully made suggestions on this thread - good ideas for me to back to my installer with).

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